7933649 has 4 divisors (see below), whose sum is σ = 7939380. Its totient is φ = 7927920.

The previous prime is 7933633. The next prime is 7933661. The reversal of 7933649 is 9463397.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6723649 + 1210000 = 2593^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 7933649 - 2⁴ = 7933633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7933609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647 + ... + 4035.

It is an arithmetic number, because the mean of its divisors is an integer number (1984845).

Almost surely, 2^7933649 is an apocalyptic number.

It is an amenable number.

7933649 is a deficient number, since it is larger than the sum of its proper divisors (5731).

7933649 is a wasteful number, since it uses less digits than its factorization.

7933649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730.

The product of its digits is 122472, while the sum is 41.

The square root of 7933649 is about 2816.6733924969. The cubic root of 7933649 is about 199.4455392871.

The spelling of 7933649 in words is "seven million, nine hundred thirty-three thousand, six hundred forty-nine".